Miata's perfect record over the Cannington 715m has frightened off other top stayers from coming to Perth to target the $120,000 Sky Racing Galaxy final tomorrow week.
Miata equalled her own track record of 41.30sec., before a vocal home crowd, when she claimed the first of her four Group 1 races in the Galaxy a year ago.
Only three interstate stayers - Arising, Kalden Mayhem and Crosswire - have made the trip to Perth to compete.
Miata is regarded as the Black Caviar of greyhound racing, having raced over the 715m 12 times for 12 wins.
Her overall career stands at 38 wins and four placings at 45 starts.
The super stayer has continued to blitz her opposition since returning home from her Group 1 win in the Bold Trease (715m) at Sandown on November 22, stringing together three 715m Cannington wins and a last-start Mandurah 647m victory at her past four runs.
Miata is drawn ideally in box two in her clash with Arising (8) in the first of the three Galaxy heats tomorrow night.
Part-owner and trainer Paul Stuart said he could not fault her. "She is going along well," Stuart said. "She is racing well and doing everything right.
"Her times might be a little slower now than they were a year ago, but she is older.
"Some of the big guns, like Bell Haven and Irma Bale, have not come over.
"I guess having to travel here and meet her on her home track they decided to stay home."
Stuart also has De Wade (3) and Max A Million (5) running in heats two and three in tomorrow's Sky Racing Perth Cup (520m) series.
Both greyhounds face an acid test, with De Wade pitched against last-start winner Renegade Chief (8) and Max A Million striking raiders Jet Blast (2), Take It All (3) and Hello Good Bye (7).
"Max A Million is not too badly suited with the way the field has drawn," Stuart said.
"De Wade is well drawn and he put in a good run at Mandurah two weeks ago, and he is an each-way chance."
WA's best sprinter Hot Irish missed a place in the $210,000 Perth Cup final when second to Things Missing in a heat last year.
She gets a chance from box two in heat four to make amends.